I have a pretty decent video card installed, but worried about how it fits due to a small piece on the motherboard. wanting to change it out to "SAPPHIRE 100293L Radeon HD 5570 1GB 128-bit DDR3 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Low Profile Ready Video Card", but the recommended PSU is 400W. I have a Gateway SX2801-01e with a Chicony CPB09-D220R (which I can't find anything about online)....my case is tiny and I'm not sure where I can find a different PSU that will fit or if they make external PSU's or not. What would happen if I ran this new card with the current PSU? I haven't bought anything yet, but I really wanted to get the new graphics card and it needs to be able to support certain games and still be low profile :-(...(remind me to never buy a slim compact case PC again).
I have a couple friends that can help me with some stuff and I know a little bit of my own, but neither of them know anything about parts for slim cases.
Any help would be greatly appreciated.